Kayin State, formerly known as Karen State, is a state of Myanmar. The capital city is Hpa-An, also spelled Pa-An. The terrain of the state is mountainous; with the Dawna Range running along the state in a NNW–SSE direction, and the southern end of the Karen Hills in the northwest. It is bordered by Mae Hong Son, Tak, and Kanchanaburi …Kayin State, formerly known as Karen State, is a state of Myanmar. The capital city is Hpa-An, also spelled Pa-An. The terrain of the state is mountainous; with the Dawna Range running along the state in a NNW–SSE direction, and the southern end of the Karen Hills in the northwest. It is bordered by Mae Hong Son, Tak, and Kanchanaburi provinces of Thailand to the east; Mon State and Bago Region to the west and south; Mandalay Region, Shan State and Kayah State to the north.